Fasting-machine



(No Model.) 3. Sheets-,Sheet 1. y G. A. T.. SPOONER.

PASTING MACHINE.

NO. 530,312, Patented Deo. 4.1894.

(No Model.) Y 3 Sheets-Sheet 2. i G. A. T. SPOONER. PASTING MACHINE.

. No. 530,312. Patented'ne. 4, 18u94.-

, (N Model.) 3-SheetsSheet 3.

G. Jis.,TpsPoomR. PASTING MACHINE- No. 530,312. Patented Dea. 4, 1894.

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A NITED* STATES PATENT OFFICE,

GEORGE A. rr. SPOONER, OE BOSTON, MASSACHUSETTS. y

PAsTlNe-MAOHINE.

SPECIFICATION forming part of Letters Iatent No. 530,312, dated December 4, 1 894. Application iiled February 5, 1894. Serial No. 499.066- (No model.)

To all whom it may con/cern:

I Se it known that I, GEORGE A. T. SPOONER, a citizen of the United States, residing atBoston, county of Suffolk, State of Massachusetts, have invented certain new and useful Improvements in PastingMachines,.of which the following is a specification.

My invention is designed for the purpose of applying paste to the edge of wrappers in which publications are to be inclosed for se cur1ty 1n mailing. In doing this, a pile of wrappers being placed upon the table of the machine, paste is automatically applied to one edge of the upper sheet and said sheet moved forward a short distance. The attendant removes this sheet and wraps it about the article to be incased. In the meantime, the machine moving synchronous with the capacity of the attendant, pastos and thrusts forward the next, and in the same manner, each succeeding sheet. 1

In the drawings forming part of this speci-1 fication, Figure l is a perspective view from the rear, with one or two parts shown as broken away, of my pasting machine. Fig 2 is a perspective view fromlthe front of a portion of the machine. Fig. 8 is aplan view ofA the same, and Figs. 3, 4, 5, 6 and 7 are detail views of portions thereof.

My device for applying the paste consists of a wheel, A, adapted to have a motion of translation by means of the block, B,\sliding in the frame C, and actuated through the lever F, audits connecting rod f. Said lever is oscillated by the cam-groove, G', of the cam-i wheel G, acting through the roll F4, lever F3, and rod F2. The adjusting slots F7, permit the travel of the pasting wheel A, to be varied to suit the width of wrappers used.

The wheel, A, procures its supply of paste by remaining in contact with the wheel, I, suciently long to make a complete revolution; said wheel, I, turning in the paste-reservoir, J. The wheel,"I, is kept in constant motion by thepulley I,and belt l2 engaging a suitable pulley, I3, on the shaft G8.

To keep the wrappers V, from buckling or being otherwise disturbed: by the passage across them of the paste-wheel A, I provide the frame, O,with the fingers, E, having their under surfaces on a level with thelowest point of the paste-wheel. The frame, C, being vertically movable in the guide-ways D, is supported by the resting of said lingers upon the corners of the pile of wrappers. This weight is ample for properly holding the upper wrappers.

` Upon the return stroke of the paste-wheel, however, to permit free removal of the top wrapper, the frame, C, is caused to rise to a sufficient height and remain there until the paste-wheel reaches the wheel I. This elevation is accomplished by the cam-surface, G2, of the cam-wheel G, upbearing against the projection H3, fixed to the post H, which is rigidly connectedwith the frame C.

Before the wheel A and frame C begin their descent, the said wheel has returned into contact with the upper surface of the pastewheel I. As said frame descends, the wheel A must move over the surface of the wheelI in a path eccentric with the upper end of the lever F. To allow the wheel, A, to follow this path, the rod, f, by which the block, B, is joined to the lever, F, is provided with a buffer spring f2 and adjustable collar f. By means of this spring, the wheel, A, can accommodate itself to the irregular path described.

The construction whichl have devised of having the frame C provided with terminal grooved ways and a central rigid post suitably guid d and having means for its elevation, is a important and novel arrangement. The re son therefor is twofold. In the first place, t e frame C must be light and yet descend reely by gravity. This construction absoutely prevents any unequal descent of the Opposite ends of the frame and consequent binding. Moreover, said post being slightly elastic, bends whenever necessary to bring the lingers L of the frame C with equal pressure upon the two corners of the wrapperpile. Were the opposite ends ofthe frame C to slide in ways suciently long and rigid to prevent binding, the flexibilityjust described would be impossible. y i

The removal of the upper` wrapper is effected by the arm K, having contact-plug K', of india-rubber, and oscillated by the camface M3, acting through the) lever K3, and shaft K2. To raise said arm out of contact with the wrappers during its backward swing, the rocking-lever, L, pivoted at, L3, to a fixed portion of the machines frame-work, engages IOO at one end with the said shaft K2, and at the other end with the cam-face M2. Y Y

Since the tendency is, when the upper wrap per is fed forward, to move more or less the sheet immediately beneath it, I provide the squaring-ingers, N, to return such displaced sheets and keep the wrapper-pile continuously square and even. These fingers are mounted on the shaft, N', and actuated by the cam-face n', crank-lever N4, and pitman N2.

To permit adjustment of the fingers N, for the accommodation of various sizes of wrappers, the shaft-bearings N2, are movably secured tothe under side of the machine-top T, by thumb-screws N8. The slots, n, permit the fingers N, to drop beneath the table surface and hence out of the way of the operator.

The wrapper-pile is retained in position by the posts P, P, O and 0', the last being made movable to fit different sized wrappers.

My pasting machine is designed to receive a pile of wrappers of some three inches in height. This pile, however, as the Work progresses, gradually sinks to nothing; but in eitherextreme the paste-wheel and fingers E, must be raised clear of the wrappers. This necessitates a uniform movement of the frame, C, to a height of nearly four inches. While this is not objectionable, such motion can be economized by the following arrangement. Y

Instead of having the block, H2, rigidly fixed upon the post H, the latter plays freely in the same, and the projection H2, is made a pivoted, friction-clamp as shown in-Fig. 3. By this means, when the frame C is supported by the wrapper-pile, thebloclr H2, sinks to the bottom of its ways and also to the lowest point of the cam-face G2; but as the latter begins to bear up against the projection H3, the block, H2, is clamped to the post and the frame,.C, raised a short distance. It therefore makes no difference as to the thickness of the wrapper pile. The height to which the frame, C, is elevated above its top sheet is always the same. In the same way, the feedarm, K, is adapted for a limited rise. The lever L, engaging the pawl L', pivoted in the block L2 and adapted to engage the racknotches in the shaft, K2, is enabled to give a uniform elevation of the said feed-arm above the upper sheet no matter what the height of the wrapper-pile.

To insure the pawl, L', disengaging itself from the rack-notches of the shaft K2 at the lower end of its stroke, I arrange the block L2 to impinge upon the shaft-bearing immediately below before the lever L reaches the lowest point of its stroke. Hence if the pile of papers were so reduced that the feed plug K would fail to rest upon the same, the pawl L would still be disengaged from the shaft K2, and the latter thereupon fall to the required point.

In Fig. 8, the paste-reservoir, J, is shown in dotted lines, and is furthermore shown as provided with a filling aperture made through thev table-top and closed by the swinging cover J2.

The means for giving the paste-wheel, A, a limited vertical motion independent of the frame C, are shown in Figs. 6 and S. To accomplish this the spindle, upon which the wheel, A, revolves, is fixed in the crank-arm, B', connected to the block B. The object of this vertical play is to permit the wheel A, to ride up and over the fingers E, and also insure contact with the paper.

The operator in his work faces the machine with the wrapper-pile directly in front of him, and as fast as each paper is secure in its wrapper, throws the same to vhis left into a mailing sack. To hold this sack open and in the proper position to receive the sealed papers, I furnish the machine with two horizontal arms U, as shown in Fig. 8, one of which at least, and preferably the one toward the front, shall be pivotally held. On the facing sides of these arms are the slightly curved hooks, U', for engaging eyes in the mailing sacks and holding them in the desired position.

A By having the front arm,U, pivoted in such a way as to be capable of swinging forward only, the arms are in correct position for supporting the mailing sacks, and yet the front arm can swing out of the way when a sack is unhooked and dragged forward for removal.

The pasting-wheel, A, and supply-wheel, I, may be of metal or4 wood; but the former wheel I prefer to make of metal with annular grooves in its periphery, as indicated in Figs. 5 and 6. These grooves are quite important, as otherwise the paste will be impressed from beneath the wheel,A, and deposited upon the wrappers along the lines of its edges alone.

l have found that by leaving short sections of the wrapper-edge unpasted, the person wishing to remove the wrapper from its contained paper can the more easily tear off the same by inserting his finger beneath these short, unpasted sections of the wrapper-edge. To form these unpasted sections, I have devised two methods; one consisting in locating one or two extra fingers, E, at points at which such sections are desired. In the other method, I form the wheel, A, with short segmental portions of its periphery removed, as at A', Figs. 4c and 5. One edge of the wheel, A, is however made continuous in order that said Wheel when in contact with the supply wheel, I, shall not fail to be rotated thereby.

What I claim as my invention, and desire to secure by Letters Patent, is as follows, to wit:

1. In a pasting machine, the combination of the vertically reciprocated slotted frame C, the block B movable in said slot and carrying paste-wheel A, the L-shaped fingers E adj ustably secured to said frame, the cam having cam-groove G", the lever FB having roll F4 engaging said groove, the lever F, the rod F2 adjustably connected to the levers F F3 by means of slots F7 in said levers, and the rod IOO IIO

of the oscillating lever, the rod loosely held at the free end of said lever and joining the same to said paste-wheel, the collar at the outer end of said rod, and the spring between said collar and said lever end, substantially y as and for the purpose set` forth.

3. In a paste-applying machine, the combi-f` nation of the vertically movable frame, the horizontally sliding block carried thereby, the paste-wheel A held by said block, and the paste-reservoir and paste-supply Wheel I, said Wheel I being so located vthat the said wheel A, when returned to the initial point of `its stroke, contacts with the upper periphery of the Wheel I, and then, when descending to the wrappers, rolls down and forward upon said wheel I, thus insuringa lengthened contact between the` two and a more thorough applying of paste to the Wheel A, substantially as set forth.

4. The combination with the vertically movable frame, of the reciprocating block carried thereby, the paste-wheel supported by said block, and the fingers rigidly connected to said frame and projectinginto the path of said wheel, said wheel havinga limited vertical play relative to its supporing block, substantially as set forth and for the purpose specified. 5. The combination with the vertically movable frame, and the pasting device carried thereby, of the post supporting said frame,

the block penetrated freely by said post, the clamp-projection pivoted in said block and adapted to grip said post, and the cam engaging said clamp-projection, as and for' the purpose specified.`

6.' The combination with a fixed table top adapted to receive a pile of wrappers, of a vertical shaft, means for rocking the same, a radial arm iixed to the upper end of said shaft and sweeping over said pile of Wrappers, a semi-adhesive plug affixed to the outer end of said arm and arranged to rest upon the wrappers and support said arm and shaft, and means for raising said shaft, it being allowed to descend by gravity, substantially as and for the purpose described.

7. Thecombination 0f the feed-arm, vertical shaft carrying the same, means for rocking the said shaft, the block loosely penetrated by said shaft, the pawl pivoted in said block and engaging notches in said shaft and the rocking-lever attached to said pawl, as and for the purpose specified.

8. The combination of the vertical shaft, feed arm carried thereby, the lever Ks keyed thereto in order to rock the same independently of simultaneous vertical motion thereof, a'clutch mechanism adapted to engage said shaft when raised, the lever, L, operating said clutch mechanism, and cams actuating said levers, substantially as set forth, for the purpose specified.

In testimony that I claim the foregoing invention I have hereunto set my hand this 1st day of February, in the year 1894.

GEORGE A. T. SPOONER. Witnesses:

A. B. UPHAM, J. M. E. DRAKE. 

